Visualization luminous device adapted for electric motors of equipments supplied by the three-phase voltage

ABSTRACT

The present invention is a visualization luminous device, adapted for electric motors of equipments supplied by the three-phase voltage, allowing to visualize with certainty if it has there or not presence of voltage downstream from the blades of the disconnecting switch or the circuit breakers at the time to put down at energy zero.

BACKGROUND OF THE INVENTION

[0001] 1. Field of the Invention:

[0002] The present invention relates to a visualization luminous device to put down at energy zero, and specifically conceived for prevent the physical injuries in work place, eliminating the electric shocks.

[0003] 2. Description of the Related Art:

[0004] At present a certain number of devices or apparatus are sold on the market but they are really different from my invention, because any one shows a visualization luminous device adapted for electric motors of equipments supplied by the three-phase voltage.

[0005] During the maintenance of the electric equipments, after that the disconnecting switches or circuit breakers are put in off-position, are you really sure to 100% that they are not more voltage? The three-phase voltage constantly threatens the workers working to the maintenance of the electric equipments. Why is this so dangerous? Because that it is always difficult to be absolutely sure that the voltage is not present on the equipments in maintenance.

[0006] The human errors and hazardous environments present a serious threat for the workers in manufacturing plant caused by:

[0007] Incorrect measurement set up;

[0008] Misreadings or misconfigurations of the voltmeter;

[0009] Lapse of concentration or distraction;

[0010] Carbon deposits giving a path for the electrical current;

[0011] The voltmeter and/or the defective accessories;

[0012] Sticking switch blades;

[0013] Double accidental feeding of electric equipments; and

[0014] The defective electronic circuit breakers (visual inspection often difficult to carry out).

ADVANTAGES OF THE INVENTION

[0015] The device is entirely encased in epoxy, resists to the humidity, dust and the vibrations;

[0016] Visualization luminous device adapted for electric motors of equipments supplied by the three-phase voltage.

[0017] The device detects any voltage or any current leakage greater than 2 mA;

[0018] The device is easy to install;

[0019] The device comprises the red lights at low current which the visual indication of the red lights is not affected by the ambient light;

[0020] The device comprises a voltage reduction universal kit which allow to the device to operate on 208 volts, 480 volts or 600 volts; and

[0021] The device is conceived to be connected to a link to ground or to a valid artificial neutral.

[0022] These Are Two Patents Which Are Held Our Attention:

[0023] U.S. Pat. No. 5,659,206 Aug. 19, 1997 Taguchi, shows an electrical circuit having a voltage detector constituted of a battery as power source, in order to continue to receive adequate power when the battery voltage drops due to operation of the high current load circuit.

[0024] U.S. Pat. No. 4,901,005 Feb. 13, 1990 Shim, shows a voltage zero detector for power systems including three voltage phases (A)(B)(C) adapted at the output of an electric input, which the first input is connected to the first output of the first voltage measurement device, and which the second input is connected at the second output of the second voltage measurement device, for generating a signal when the first measured voltage is equal to and opposite in polarity from the second measured voltage.

SUMMARY OF THE INVENTION

[0025] The gist of the invention is therefore to provide a visualization luminous device allowing to visualize with certainty if it has there or not presence of voltage downstream from the blades of the disconnecting switch or the circuit breakers at the time to put down at energy zero.

[0026] The present invention shows a visualization luminous device increasing in a radical way the security of the people assigned to the works of maintenance on the electric equipments supplied by the three-phase voltage, because too a long time that the voltage will be present downstream from the blades of the disconnecting switch, one or more red lights of the device will remain lit. A rapid and visual inspection indicates if the electric system is at energy zero.

[0027] Visualization luminous device adapted for electric motors of equipments supplied by the three-phase voltage.

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWING(S)

[0028]FIG. 1 shows a side view of the visualization luminous device.

[0029]FIG. 2 shows a rear view of the visualization luminous device.

[0030]FIG. 3 shows a front view of the visualization luminous device.

[0031]FIG. 4 shows an internal view of the electric diagram of the visualization luminous device.

[0032]FIG. 5 shows a view of the electric installation of the visualization luminous device.

DETAILED DESCRIPTION OF THE INVENTION

[0033] As shown in FIGS. 1, 2 and 3, a vizualisation luminous device to put down at energy zero, adapted for electric motors of equipments supplied by the three-phase voltage, is characterized by the red lens in poly carbonate (1) having a translucent part; the red lens in poly carbonate (2) having a threaded part screwed to a threaded socket (3) in poly carbonate which is fixed to an hexagonal nut (4) in black poly carbonate which is connected to the case (7) of the device in poly carbonate filled of epoxy; the metal screws (5) limited by the separators (6) allow the wiring link (12) to the diodes (13); the electric identification signs (8) allow to identify the output of standard ground, and the letters (A) (B) (C) allow to identify the electric inputs. As shown in FIGS. 4 and 5, the resistance of the wiring kit (11) connected to the device by the wires (12) and the metal screws (5) allow to connect the wires to the diodes (13), to the resistance (14), to the red lights (15) and to the connections (16), to a link to ground (9) by the screws at the electric ground (10) of the device. The diagram of the electric installation to the electric motor (21) of the device is identified by the electric components (17)(18)(19)(20).

[0034] Legend

[0035]1=red lenses in poly carbonate (translucent part)

[0036]2=red lenses in poly carbonate (threaded part)

[0037]3=threaded sockets in poly carbonate

[0038]4=hexagonal nuts in black poly carbonate

[0039]5=metal screws

[0040]6=separators in poly carbonate

[0041] Visualization luminous device adapted for electric motors of equipments supplied by the three-phase voltage.

[0042]7=Case of the device in poly carbonate filled of epoxy

[0043]8=Letters and electric identification signs

[0044]9=Link to ground connected to the electric ground of the device

[0045]10=Electric ground

[0046]11=Résistances of the wiring kit

[0047]12=Wires being connected to the resistances and to the device

[0048]13=Diodes connected to the resistances

[0049]14=Résistances connected to the red lights

[0050]15=Red lights

[0051]16=Connections to a link to ground at the electric ground of the device

[0052]17=Disconnecting switch

[0053]18=Fuses

[0054]19=Magnetic contactors

[0055]20=Overload relays

[0056]21=Electric motor

[0057] A=Phase A

[0058] B=Phase B

[0059] C=Phase C

[0060] Visualization luminous device adapted for electric motors of equipments supplied by the three-phase voltage: 

The embodiments of the invention for which an exclusive property or privilege is claimed, are defined as follows:
 1. A visualization luminous device to put down at energy zero, adapted for electric motors of equipments supplied by the three-phase voltage, said device comprising: (a) The red lenses in poly carbonate having a translucent part; (b) The red lenses in poly carbonate having a threaded part screwed to threaded socket in poly carbonate fixed at an hexagonal nut in black poly-carbonate connected to the case of the device in poly carbonate filled of epoxy; (c) The metal screws limited by the separators allow the wiring link to the diodes; (d) The electric identification signs allow to identify the output of standard ground, and the letters (A)(B)(C) allow to identify the electric inputs; and (e) The resistances connected to the device by the wires and metal screws allow to connect the wires to the diodes, to the resistance, to the red lights and to the connections, to a link to ground by the screws at the electric ground of the device.
 2. A visualisation luminous device as described to claim 1, wherein the diagram of the electric installation to the electric motor of the device comprises: (a) Three phases identified by the letters (A) (B) (C); (b) A disconnecting switch; (c) The fuses; Visualization luminous device adapted for electric motors of equipments supplied by the three-phase voltage. (d) The magnetic contactors; (e) The overload relays; and (f) A link to ground connected at the electric ground of the device. 